Important Points About the Diffuse Reflection

An extremely rough surface appears uniformly bright from each viewing direction Q the intensity of reflected light is identical in all directions therefore generate diffuse reflection that are constant over each surface in a scene, independent of the viewing direction. The fractional amount of the incident light which is diffusely reflected can be set for all surfaces along with parameter K_d . K_d →diffuse reflection coefficient or diffuse reflectivity.

0 ≤ K_d ≤ 1(K_d → property of material).

K_d = 1 for extremely reflective surfaces reflecting complete light. K_d = 0 for surfaces which absorb light fully.